Home > Publications database > High-Performance Carbon Nanotube Field-Effect Transistor With Tunable Polarities |
Journal Article | PreJuSER-52769 |
; ; ;
2005
IEEE
New York, NY
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Please use a persistent id in citations: http://hdl.handle.net/2128/2038 doi:10.1109/TNANO.2005.851427
Abstract: State-of-the-art carbon nanotube field-effect transistors (CNFETs) behave as Schottky-barrier-modulated transistors. It is known that vertical scaling of the gate oxide significantly improves the performance of these devices. However, decreasing the oxide thickness also results in pronounced ambipolar transistor characteristics and increased drain leakage currents. Using a novel device concept, we have fabricated high-performance enhancement-mode CNFETs exhibiting n- or p-type unipolar behavior, tunable by electrostatic and/or chemical doping, with excellent OFF-State performance and a steep subthreshold swing (S = 63 mV/dec). The device design allows for aggressive oxide thickness and gate-length scaling while maintaining the desired device characteristics.
Keyword(s): J ; carbon nanotube (auto) ; doping (auto) ; field-effect transistor (auto) ; Schottky barrier (SB) (auto)
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